Product Name: O-RingMaterial: RubberBlack colourinner diameter: 35 mm / 3.5cm / 1.38 inchOuter diameter: 38 mm / 1.5 inchThickness: 1.5 mm / 0.06 inchWeight: 3gPackage Content: 20 x O-RingOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.
